Define oxidation and reduction in terms of
oxygen loss / gain, and identify such reactions
from given information
Oxidation is the gain of
oxygen. The loss of
oxygen is the reduction.
Define redox in terms of electron
transfer, and identify such
reactions from given information
Oxidation and reduction reactions always occur together in a redox
reaction. Redox changes can often be observed as significant colour changes
e.g. rusting / corrosion of iron.iron + copper(II) sulfate → iron(II) sulfate +
copper
oxidation is the loss of electrons, reduction is gain of
electrons